Optical-Link Digital Amplifier A-X550

Pioneer Corporation; Tokyo

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  • Year
  • 1989
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 298956

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Radio Control (+Remote Wire etc)
  • Power type and voltage
  • Alternating Current supply (AC) / 220/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 170 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Optical-Link Digital Amplifier A-X550 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 360 x 121 x 346 mm / 14.2 x 4.8 x 13.6 inch
  • Notes

  • A hi-fi stereo integrated amplifier housed in a black metal case with infrared remote control with continuous power output of 2 x 85 watts into 8 ohms (2 x 100 watts into 8 ohms DIN). With built-in D/A converter with an 8 times oversampling digital filter. With Bass and Treble tone controls, continuously variable Bass Equalizer control, switches for DAT Direct and CD Direct, Pure Direct Line switch, DAT to Tape and Tape to DAT copying, jack for headphones. On the rear panel, connections for input CD digital (Optical), CD, AUX, Tuner and Phono, for input/output Adaptor, Tape and DAT, for output system remote, terminals for 2 pairs of loudspeakers and 3 switched 100W AC outlets.

    Specification  
    Continuous power output
    (both channels driven)
    20Hz—20kHz, THD 0.3%, into 8Ω    		  

    85W + 85W
    DIN continuous power output
     (both channels driven)
     1kHz, THD 1%, into 8Ω    		  

    100W + 100W
    DIN music power
     (both channels driven)
     1kHz, THD 1%, into 8Ω    		  

    160W + 160W
    IEC Continuous power output
     (both channel driven)
     63Hz—12.5kHz, THD 0.7%, 8Ω

    95W + 95W
    Total harmonic distortion
     1kHz, 50W, 8Ω
    0.003%
    Input (sensitivity/impedance)
    PHONO
    TUNER, CD, AUX, TAPE PLAY, DAT PLAY, ADAPTOR
    2.5mV/50kΩ
    150mV/50kΩ
    Output level
     TAPE REC, DAT REC, ADAPTOR OUT
    150mV
    Frequency Response
     PHONO
     TUNER, CD, AUX, TAPE PLAY, DAT PLAY, ADAPTOR
     CD (CD DIRECT ON)
    20Hz—20kHz ± 0.5 dB
    10Hz—100kHz +1dB,-3 dB
    10Hz—100kHz +1dB,-3 dB
    Signal-to-Noise ratio
    (short circuited, A network)    		  
     PHONO
     TUNER, CD, AUX, TAPE PLAY, DAT PLAY, ADAPTOR
     CD (CD DIRECT ON) (ANALOG)    		 72dB
    93dB
    102dB
    Signal-to-Noise ratio
    (DIN, continuous power/50 mW)    		  
    PHONO
     CD (CD DIRECT ON)
     TUNER, CD, AUX, TAPE PLAY, DAT PLAY, ADAPTOR    		 68dB/60dB
    82dB/62dB
    82dB/62dB
    D/A Converter Section  
    Frequency Response 5Hz—20kHz +0.5dB,-1dB
    Signal-to-Noise ratio
    Dynamic Range    		 103dB (EIAJ)
     96dB (EIAJ)

    Versions/Power requirements 

    HE Europe 220, 240V AC 50/60Hz switchable*
    HB UK 220, 240V AC 50/60Hz switchable*
    HEZ W Germany 220, 240V AC 50/60Hz switchable*

    * By changing the primary wiring of the transformer

    Power consumption:  480W

  • Net weight (2.2 lb = 1 kg)
  • 8.8 kg / 19 lb 6.1 oz (19.383 lb)
  • Mentioned in
  • -- Original-techn. papers.
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual Pioneer A-X550 dated Apr 1989)

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